<template>
	<el-form size="small">
		<el-form-item>
			<el-radio v-model="radioValue" :label="1"> 周，允许的通配符[, - * ? / L #] </el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio v-model="radioValue" :label="2"> 不指定 </el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio v-model="radioValue" :label="3">
				周期从
				<el-select clearable v-model="cycle01">
					<el-option
						v-for="(item, index) of weekList"
						:key="index"
						:label="item.value"
						:value="item.key"
						:disabled="item.key === 7"
						>{{ item.value }}</el-option
					>
				</el-select>
				-
				<el-select clearable v-model="cycle02">
					<el-option
						v-for="(item, index) of weekList"
						:key="index"
						:label="item.value"
						:value="item.key"
						:disabled="item.key <= cycle01"
						>{{ item.value }}</el-option
					>
				</el-select>
			</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio v-model="radioValue" :label="4">
				第
				<el-input-number v-model="average01" :min="1" :max="4" /> 周的
				<el-select clearable v-model="average02">
					<el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
				</el-select>
			</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio v-model="radioValue" :label="5">
				本月最后一个
				<el-select clearable v-model="weekday">
					<el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
				</el-select>
			</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio v-model="radioValue" :label="6">
				指定
				<el-select class="multiselect" clearable v-model="checkboxList" placeholder="可多选" multiple :multiple-limit="6">
					<el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
				</el-select>
			</el-radio>
		</el-form-item>
	</el-form>
</template>

<script setup>
const emit = defineEmits(["update"]);
const props = defineProps({
	cron: {
		type: Object,
		default: () => {
			return {
				second: "*",
				min: "*",
				hour: "*",
				day: "*",
				month: "*",
				week: "?",
				year: ""
			};
		}
	},
	check: {
		type: Function,
		default: () => {}
	}
});
const radioValue = ref(2);
const cycle01 = ref(2);
const cycle02 = ref(3);
const average01 = ref(1);
const average02 = ref(2);
const weekday = ref(2);
const checkboxList = ref([]);
const checkCopy = ref([2]);
const weekList = ref([
	{ key: 1, value: "星期日" },
	{ key: 2, value: "星期一" },
	{ key: 3, value: "星期二" },
	{ key: 4, value: "星期三" },
	{ key: 5, value: "星期四" },
	{ key: 6, value: "星期五" },
	{ key: 7, value: "星期六" }
]);
const cycleTotal = computed(() => {
	cycle01.value = props.check(cycle01.value, 1, 6);
	cycle02.value = props.check(cycle02.value, cycle01.value + 1, 7);
	return cycle01.value + "-" + cycle02.value;
});
const averageTotal = computed(() => {
	average01.value = props.check(average01.value, 1, 4);
	average02.value = props.check(average02.value, 1, 7);
	return average02.value + "#" + average01.value;
});
const weekdayTotal = computed(() => {
	weekday.value = props.check(weekday.value, 1, 7);
	return weekday.value + "L";
});
const checkboxString = computed(() => {
	return checkboxList.value.join(",");
});
watch(
	() => props.cron.week,
	value => changeRadioValue(value)
);
watch([radioValue, cycleTotal, averageTotal, weekdayTotal, checkboxString], () => onRadioChange());
function changeRadioValue(value) {
	if (value === "*") {
		radioValue.value = 1;
	} else if (value === "?") {
		radioValue.value = 2;
	} else if (value.indexOf("-") > -1) {
		const indexArr = value.split("-");
		cycle01.value = Number(indexArr[0]);
		cycle02.value = Number(indexArr[1]);
		radioValue.value = 3;
	} else if (value.indexOf("#") > -1) {
		const indexArr = value.split("#");
		average01.value = Number(indexArr[1]);
		average02.value = Number(indexArr[0]);
		radioValue.value = 4;
	} else if (value.indexOf("L") > -1) {
		const indexArr = value.split("L");
		weekday.value = Number(indexArr[0]);
		radioValue.value = 5;
	} else {
		checkboxList.value = [...new Set(value.split(",").map(item => Number(item)))];
		radioValue.value = 6;
	}
}
function onRadioChange() {
	if (radioValue.value === 2 && props.cron.day === "?") {
		emit("update", "day", "*", "week");
	}
	if (radioValue.value !== 2 && props.cron.day !== "?") {
		emit("update", "day", "?", "week");
	}
	switch (radioValue.value) {
		case 1:
			emit("update", "week", "*", "week");
			break;
		case 2:
			emit("update", "week", "?", "week");
			break;
		case 3:
			emit("update", "week", cycleTotal.value, "week");
			break;
		case 4:
			emit("update", "week", averageTotal.value, "week");
			break;
		case 5:
			emit("update", "week", weekdayTotal.value, "week");
			break;
		case 6:
			if (checkboxList.value.length === 0) {
				checkboxList.value.push(checkCopy.value[0]);
			} else {
				checkCopy.value = checkboxList.value;
			}
			emit("update", "week", checkboxString.value, "week");
			break;
	}
}
</script>

<style lang="scss" scoped>
.el-input-number--small,
.el-select,
.el-select--small {
	margin: 0 0.5rem;
}
.el-select,
.el-select--small {
	width: 8rem;
}
.el-select.multiselect,
.el-select--small.multiselect {
	width: 17.8rem;
}
</style>
